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Convert columns to string in Pandas

...cated dtype. object dtype breaks dtype-specific operations like DataFrame.select_dtypes(). There isn’t a clear way to select just text while excluding non-text but still object-dtype columns. When reading code, the contents of an object dtype array is less clear than 'string'. See also the se...
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Filter dict to contain only certain keys?

...e got a dict that has a whole bunch of entries. I'm only interested in a select few of them. Is there an easy way to prune all the other ones out? ...
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Python function overloading

...working with languages that can discriminate data types at compile-time, selecting among the alternatives can occur at compile-time. The act of creating such alternative functions for compile-time selection is usually referred to as overloading a function. (Wikipedia) Python is a dynamical...
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What do I have to do to get Core Data to automatically migrate models?

...oordinator: %@",error); } Then you need to do a little trick in xCode: Select your xcdatamodel file Select the Design Menu at the top - then Data Model - then choose Add Model Version Your xcdatamodel file will then get moved into a new directory with the same name as your xcdatamodel file but w...
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ADB No Devices Found

...the same problem on a LG G3 Device that was not getting detected on a Mac. Selecting PTP mode fixed it. Thanks! – shauvik Jul 10 '15 at 23:40  |  ...
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MySQL OPTIMIZE all tables?

...>.<your_table>;, optimize all tables in a given schema like this: select concat('OPTIMIZE NO_WRITE_TO_BINLOG TABLE ',table_schema,'.',table_name,';') into outfile '/tmp/optimize_all_tables.sql' from information_schema.tables where table_schema = 'pabeta' and table_type = 'base table'; sourc...
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Connect different Windows User in SQL Server Management Studio (2005 or later)

... use with the "runas" command. Then, in SQL Management Studio 2005, just select the "Windows Authentication" and input the server you wanna connect to (even though the user that you can see greyed out is still the local user)... and it works! Don't ask me why ! :) Edit: Make sure to include ":14...
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How to run a method every X seconds

... Spot on! Using for checking MainActivitys current selected tab in TabLayout matches this fragment and if not stop work - as onPause() fails when any TabLayout selected tabs either side of this selected tab – BENN1TH Oct 20 '18 at 7:29 ...
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How to find out which version of the .NET Framework an executable needs to run?

...nOnlyLoadFrom($file.FullName).GetCustomAttributesData() | select-object -ExpandProperty ConstructorArguments | select-object -ExpandProperty Value | select-string -Pattern '.NET') Write-Output "$filename,$version" } provides the following re...
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Why all the Active Record hate? [closed]

...need to write raw SQL, it's easily done. @Tim Sullivan ...and you select several instances of the model, you're basically doing a "select * from ..." Code: people = Person.find(:all, :select=>'name, id') This will only select the name and ID columns from the database, all the other ...